AJAX query isn't functioning when passed a string

Question

Explanation

I have the following code in PHP that allows the user to select a name from a drop-down, then pass that name as a string over to a JavaScript function:

<?php
                include('./db.php');
                $PM = mysqli_query($con, "SELECT DISTINCT PMName FROM report WHERE PMname <> '' ORDER BY PMName ASC");
                ?>
                <select class="navbar-inverse" placeholder="PM Name" name="PMName" onchange="showUser(this.value)">
                <?php
                while ($row = mysqli_fetch_row($PM)) {
                $selected = array_key_exists('PMName', $_POST) && $_POST['PMName'] == $row[0] ? ' selected' : '';
                printf(" <option value='%s' %s>%s</option>\n", $row[0], $selected, $row[0]);
                }
                ?>

The JavaScript function then reads the string:

function showUser(str) {
  if (str !==".PM") {
    if (str=="") {
      document.getElementById("txtHint").innerHTML="";
      return;
    } 
  }
  $("#txtHint").load( "getuser.php?q="+str );
    console.log(str);
}

and is supposed to place the output of getuser.php?q=John%Doe into the txtHint DIV.

Issue

the str value does not APPEAR to be fully passing into the $("#txtHint").load( "getuser.php?q="+str ); line of code.

When I look at my console, I see the following once the JavaScript function fires:

HR finished loading: GET "http://localhost/getuser.php?q=John"
John Doe

If I change the code to read just $("#txtHint").load( "getuser.php?q=");, (without passing the str variable,) it works fine and loads the getuser.php page into the DIV, (of course, without a name I don't get back any info, but it works...)

What am I doing wrong here? If the console.log(str) is outputting John Doe, then obviously the entire string is John Doe, so why is my console outputting ?q=John? and causing getuser.php not to load into the DIV?

I'm very confused here....

Always read the documentation, if you had, you would notice that there is a data argument for load, and you can just do $("#txtHint").load( "getuser.php", {q : str} ); — adeneo
– adeneo, Commented Oct 30, 2014 at 21:26

jeroen · Accepted Answer · 2014-10-30 21:09:21Z

3

You need to encode your string if you want to send it as a query variable:

$("#txtHint").load( "getuser.php?q="+encodeURIComponent(str));

answered Oct 30, 2014 at 21:09

jeroen

91.8k22 gold badges117 silver badges132 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

lordterrin Over a year ago

Beauty. Thank you! I figured it had something to do with encoding the actual string.

Collectives™ on Stack Overflow

AJAX query isn't functioning when passed a string

Explanation

Issue

1 Answer 1

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

Explanation

Issue

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related